I don't know if the players that go out constantly on loan really qualify for this type of distinction. To me it sounds like a miserable life by the standards of a footballer, never having a home really, constantly trying to learn new teammates, coaches, other staff. At least if you're on loan, you're most likely still expected to contribute to whatever club you're at, Drinkwater and guys like the 4th string goalkeeper who's at some club for purely homegrown status aren't going to be expected to actually compete or maintain a standard of form.